[hemmerling] Remote Access Tools for Computers & Network Clients 3/5 - Screen Sharing

Related pages:

• Remote Access Tools for Computers & Network Clients 1/5.
• Remote Access Tools for Computers & Network Clients 2/5 - Serial Connection.
• Remote Access Tools for Computers & Network Clients 4/5 - Browsers & E-Mail Clients & Newsreaders I.
• Remote Access Tools for Computers & Network Clients 5/5 - Browsers & E-Mail Clients & Newsreaders II.
• Unix 2/12 - Linux & BSD Distributions, “Google Android” for “Unix System Shells” for Android.

• The commercial RealVNC for Windows and Linux.
  • The free
    • VNC Free Edition 4.1 for Windows and Linux.
    • CHIP "RealVNC (letzte Freeware-Version)", Version 6.7.0, 2020-01 - “Um RealVNC nutzen zu können, müssen Sie sich während der Installation beim Hersteller kostenlos registrieren und den zugeteilten Lizenzkey eintragen”.
• Archive.Org "University Of Cambridge, Department of Engineering, Virtual Network Computing, hosted in conjunction with The Laboratory for Communications Engineering - VNC".
• EN.Wikipedia "RealVNC".

• TightVNC.
  • TightVNC 2.8.85 for Windows 64-bit & 32-bit.
  • TightVNC 1.3.10 for Windows 95/98/ME, Windows NT 4.0, Unix-like systems ( including Linux ).
• EN.Wikipedia "TightVNC".

• TigerVNC - “TigerVNC was originally based on the (never-released) VNC 4 branch of TightVNC”.
  • GitHub "TigerVNC".
    • GitHub "TigerVNC / tigervnc / releases".
    • Wiki GitHub "TigerVNC / tigervnc / Wiki".
      • GitHub "TigerVNC / tigervnc / Wiki / Setup TigerVNC server (Windows)".
  • Package installation:
    1. SourceForge "TigerVNC. Release downloads for the TigerVNC project", SourceForge "TigerVNC. Release downloads for the TigerVNC project" - Binary downloads including downloads for “ubuntu24”, “el9”, “windows”.
    2. RedHat, CentOS, RockyLinux, AlmaLinux: The package was available with RHEL9. With the release of RHEL10, the package was removed .

• uVNC - “UltraVNC Remote Access Tools”.
• GitHub "UltraVNC".
• Sourceforge "UltraVNC", Sourceforge "UltraVNC" - Outdated. “As of 2020-09-24, this project can be found here” ⇒ GitHub.
• EN.Wikipedia "UltraVNC", DE.Wikipedia "UltraVNC" - “The client supports Microsoft Windows and Linux but the server only supports Windows”.

• The commercial “SIMATIC IPC Remote Manager”.
  • Siemens AG "Ab sofort erhältlich: SIMATIC IPC Remote Manager V1.3 (Software) für SIMATIC IPC", 2016.
• 2 interfaces.
  • Web browser interface, for basic AMT operations.
  • RealVNC VNC Viewer Plus, SIEMENS OEM Edition.
• Vendor Mercateo "6ES7648-6EA01-0YA0 Siemens Simatic IPC REMOTE MANAGER".
• Hardware:
  • SIEMENS AG "SIMATIC Box PC" - “Der Box-PC eignet sich zum Messen, Steuern, Regeln und Prüfen von Prozess- und Maschinendaten, die industrielle Bildverarbeitung oder für die dezentrale Visualisierung”.

• The shareware Archive.Org "M-Azlan Software - Reverse HTTP Starter".
  • “Reverse HTTP Starter has many uses. Essentially, it connects the URL (http://...) of a text file and checks it for keywords at a specified interval. If a keyword is found a corresponding batch (*.bat) or executable (*.exe) file is run locally on your computer - usually to perform a certain task. If you want a certain application or script to be performed on a remote computer only when you desire, then all you need to do is upload a text file (i.e. a 'marker') to the URL and once this program checks it for your keyword the task will be run on your remote machine (the same one Reverse HTTP Starter is running on)”.
  • “A good example where this program comes in handy is when using an application such as VNC (Virtual Network Computing). If your workplace is behind a firewall and you need to control your work PC from home you will usually need to establish a 'reverse' connection for it to function. This means that the listening program runs on your home computer but the connection is initiated from your work PC. How are you going to initiate the connection if you're not at work? Just keep Reverse HTTP Starter running in your system tray at work and have it periodically (say every 180 seconds) check the URL for your marker (the text file with your keyword). When it finds the keyword it executes the batch file you have specified which in turn initiates the reverse connection. A detailed example is given in the Help section”.
  • Archive.Org "M-Azlan Software - Reverse HTTP Starter Help".
• Archive.org "M-Azlan Software 'Reverse HTTP Starter 1.7'" ( rhsv1.zip ) - Download of the latest edition.

• idroot "How To Install VNC Server on AlmaLinux 10".

• $ sudo dnf update -y
  $ sudo dnf upgrade -y
  $ sudo dnf install epel-release
  $ sudo dnf groupinstall "Development Tools" -y
  $ sudo dnf install nano vim net-tools wget curl -y

• Instead of ”$ sudo systemctl status systemd”:

  $ systemctl status

• $ sudo systemctl status firewalld

• Select one of the 2 desktops and install it, if necessary:
  • Installing GNOME Desktop

    $ sudo dnf groupinstall "Server with GUI" -y
    sudo systemctl set-default graphical.target

  • Installation of Xfce

    $ sudo dnf groupinstall "Xfce" -y
    $ sudo dnf groupinstall "Xfce" -y

• Download and installation.
  • The package was available with RHEL9. With the release of RHEL10, the package was removed .
    • ”$ sudo dnf install tigervnc-server tigervnc-server-module -y”.
  • After RHEL10 release: Manual download and manual local installation.
• Confirm successful installation by checking installed package versions and verifying service file locations

  $ rpm -qa | grep tigervnc
  $ ls -la /lib/systemd/system/vncserver@.service

• AskUbuntu "How do I install a VNC server?".
• Ionos "VNC Server Ubuntu 22.04 installieren: Schritt für Schritt".
• nixCraft "Howto / Gnome / How To Install and Configure TigerVNC server on Ubuntu" ( cyberciti.biz ).

• Fedora User Docs "System Administrator’s Guide / Infrastructure Services / TigerVNC" ( Fedora 40 ).
• Google - Search for "installing vnc on almalinux" - Google AI answer .
• HowToForge "Guide to Install VNC Server on AlmaLinux 9", HowToForge "Anleitung zur Installation von VNC Server auf AlmaLinux 9", 2023.
  • Installation asks to install the packages “XFCE Desktop” and “Xorg”. “GNOME Desktop” is not mentioned.
    • ArchLinux Wiki "Xorg".
• idroot "How To Install VNC Server on AlmaLinux 10".
  • Installation expects that the “systemd” service is operational, by the instruction

    $ sudo systemctl status systemd

  • However, this is not true with my system.
  • The installation instructions suggest to install “GNOME Desktop” or “XFCE Desktop”. XFCE installation completes more quickly than GNOME and consumes significantly less memory during operation. This desktop environment excels in VNC scenarios where network bandwidth or system resources are constrained.
• reddit.
  • reddit "r/linuxquestions", Thread "How to install TigerVNC on AlmaLinux10 ?".
  • reddit "r/linuxadmin", Thread "How to install TigerVNC on AlmaLinux10 ?".
    • “TigerVNC was removed in RHEL 10”.
    • RedHat Bugzilla "Bug 2304324 - [RFE:EPEL10] EPEL10 branch of tigervnc " - “Can tigervnc be branched and built for EPEL10?”.
• RedHat Documentation "Red Hat Enterprise Linux 7 / System Administrator’s Guide / Chapter 13. TigerVNC".
• Reintech "Installing and Using VNC Server on AlmaLinux 9", 2024.
• Serverspace "How to Install and Configure TigerVNC Server on CentOS 8 for Remote Desktop Access".
• ServerWorld "AlmaLinux 9 : Configure VNC Server".
• Shapehost "Optimieren Sie den Remote-Zugriff: Installieren Sie den VNC-Server auf AlmaLinux 9 – DE".
• Siberoloji "How to Configure VNC Server on AlmaLinux", 2025.

• EN.Wikipedia "VNC", DE.Wikipedia "Virtual Network Computing".

• Google Groups "TigerVNC User Discussion/Support".

• Intel "Intel vPro Manageability".
• Intel "Intel® Active Management Technology (Intel® AMT) Technical Advisory"]. *[[http://community.intel.com/t5/Intel-vPro-Platform/Intel-AMT-s-KVM-functionality-can-only-be-used-with-the-on-board/td-p/401452|Intel Community "Intel AMT's KVM functionality can only be used with the on-board Intel GPU".
  • “In my works try to implement vPro, we currently have 100 teams this vPro technology. The trouble is that the pc have video cards (ATI, AMD, G-FORCE). Doing quick test with VNC Viewer Plus gives me the message: Error: 0×80862001: Unsupported or inactive display adapter”.
  • “In order for Intel AMT KVM to work you must use Intel integrated graphics”.

• Geizhals.AT.
  • Geizhals.AT "Q57", Geizhals.AT "Q57M".
  • Geizhals.AT "Q67", Geizhals.AT "Q67M".
• heise "Bürocomputer & Business-Notebooks: Intels vierte vPro-Generation", 2010-02-04.
  • List of remote control software for vpro/AMT.
  • “Für KVM Remote Control braucht man leider spezielle VNC-Software; von RealVNC soll “demnächst” VNC Viewer Plus erscheinen, der mit AMT-6.0-PCs kommuniziert. Laut Intel plant wohl auch TightVNC eine AMT-kompatible Version”.
• Tom's Hardware "Remote PC Management with Intel's vPro".
  • Tom's Hardware "Where Does AMT Fit In?".
• RealVNC Help "VNC Viewer Plus Error Messages", 2023.
  • “Error 0×80862000. Unsupported or inactive display adapter”. “The remote computer has a discrete graphics card that is taking precedence over Intel integrated graphics. Please note this is an Intel, not a RealVNC, error”, “On the remote computer, ensure the onboard GPU is switched on (controlled within the BIOS settings), and the display is attached to the correct adapter port”.
• Wikipedia.
  • EN.Wikipedia "Intel Core", DE.Wikipedia "Intel-Core-i-Serie".
  • EN.Wikipedia "Intel vPro", DE.Wikipedia "Intel vPro" - “AMT-Funktionen”.
  • EN.Wikipedia "x86 virtualization", DE.Wikipedia "Intel Virtualization Technology".
  • EN.Wikipedia "Intel Active Management Technology" - “From major version 6, Intel AMT embeds a proprietary VNC server, so you can connect out-of-band using dedicated VNC-compatible viewer technology, and have full KVM (Keyboard, Video, Mouse) capability throughout the power cycle - including uninterrupted control of the desktop when an operating system loads”.
  • EN.Wikipedia "Intel GMA", DE.Wikipedia "Intel GMA" ( Intel Graphics Media Accelerator ).
  • EN.Wikipedia "Intel HD Graphics".

• Must be shipped with vPro technology.
• Must provide suitable AMT technology ( AMT 6 or newer ). Be aware of motherboards which provide vPro technology but insufficient AMT technology ( e.g. AMT 5 ).

• The motherboard / computer must be shipped with a vPro enabled CPU . With many computers, the manufacturers provide optinal CPUs both with and without vPro, without explicte naming of the vPro feature.
• The bundeling of a vPro CPU with a motherboard is no indictor that the motherboard supports vPro technology. Especially, the support of vPro technology is no indicator that there is sufficent AMT technology.

• “Does your motherboard support Intel vPro Technology with AMT 6 or newer, with activated CPU-internal HD2000 / HD3000 Intel graphics card ?”.
• “Definitely, may I address the switched-off computer by Ethernet network, and log on the internal AMT server and the VNC server?”.

• There is the mission of Intel, to deliver the vPro technology just to the “system houses” and to the “business” sales channel ( → computers shipped with Windows Professional ), not to “consumer electronics supermarkets and consumer electronics store chains” and the “private users” channel ( → computers shipped with Windows Home Premium ).

• Intel DQ57TML ( 1 serial Port via internal header, 1 x PS/2, floppy disk connector ), Intel DQ67OW ( No serial Port via internal header, 1 x PS/2, floppy disk connector, vPro, AMT 7.0, Geizhals.AT "DQ67OW" ), Intel DQ67EP, Intel DQ67SW ).

• “ASUS P8Q67-M DO/CSM Motherboard” ( “1 x parallel port, 1 x COM port(s), 2x PS/2, 1 x internal speaker connector(s), vPro, AMT7. No floppy disk connector . Geizhals.AT "P8Q67-M DO/CSM" ).

• “Foxconn Q67M-S” ( Geizhals.AT "Foxconn Q67M, Q67 (dual PC3-10667U DDR3)" ).

• Q57M.
  • Gigabyte "GA-Q57M-S2H".
  • Geizhals.AT "Gigabyte GA-Q57M-S2H, Q57 (dual PC3-10667U DDR3)".
• Q67M.
  • Gigabyte "GA-Q67M-D2H-B3".
  • Geizhals.AT "Gigabyte GA-Q67M-D2H-B3, Q67 (B3) (dual PC3-10667U DDR3).

• C7SIM-Q.
  • Supermicro "C7SIM-Q".
  • Geizhals.AT "C7SIM-Q, Q57 (dual PC3-10667U)".
• C7Q67.
  • Supermicro "C7Q67"
  • Geizhals.AT "C7Q67".

• Dell OptiPlex 755, Dell OptiPlex 760.
• Dell OptiPlex 990 SF Advanced.
  • There is the rumour that you must order a special option in the online order formular, to activate vPro/AMT remote access, invoiced with 5 EUR. If you don´t do so, the rumour says that then you will get a computer without working remote access. Maybe it is not possible to order this option by the online order process ?! The option might appear in the section “BIOS Configuration Options” in the online order formular. Please contact me if you know what this option is, exactly.
• Dell OptiPlex 990 SFF.
  • heise online, c't 23/2011 - “Prüfstand. Ferngelenkt. vPro-Rechner Dell OptiPlex 990 SFF. Dells Büro-PC Optiplex 990 Small Form Factor kombiniert die schnellste Sandy-Bridge-CPU mit einem kompakten Gehäuse und lässt sich auch aus der Ferne warten”.

• There is a rumour, that you must explicitely choose an order option to get a computer with activated vPro/AMT, invoiced with with 50 EUR .. 100 EUR, in 2012-03.

• In 2014, I was told by Lenovo staff members, that the “T430”, “T440”, “T530”, “T540” ThinkPad notebooks and the “Think Centre M93p” desktop computer once could be ordered with i5-vpro and i7-vpro CPUs.
• The chipset “Intel Q87 Chipset” enables the vPro technology!
• Further, an Intel WLAN network component must be installed. With these special computers, the “Wake on LAN” ( WOL ) technology is then implemented, without further order.
  • EN.Wikipedia "Wake On LAN", DE.Wikipedia "Wake On LAN".

• EN.Wikipedia "Ultrabook", DE.Wikipedia "Ultrabook", usually with with 64 / 128 / 256 KB SDD.
• Most sales of “Ultrabook” notebooks don't claim of AMT technology, i.e. they don't tell if the CPU is with or without Intel vPro, also no claim of AMT technology.

• The monitor with zero client “Fujitsu Technology Solutions GmbH - Zero Client DZ22-2” ( Geizhals.AT "DZ22-2" ).
• The monitor with zero client “Technology Solutions GmbH Zero Client DZ19-2” ( Geizhals.AT "DZ19-2" ).
• The USB stick “Fujitsu Technology Solutions GmbH -Portable Zero Client MZ900”.

• RemoteDesktop ( RDP ) 5.1, 5.2 for W2k clients.
  • “Windows XP Remote Desktop Connection software” for Win95, Win98SE, W2k, WinXP, Win2003.
  • “Remote Desktop Web Connection for Windows Server 2003” for Win95, Win98SE, W2k, WinXP, Win2003.
• RemoteDesktop ( RDP ) 7.0 for WinXP, Vista clients - “The Remote Desktop Connection 7.0 client update enables you to use the new Remote Desktop Services features. These features are introduced in Windows 7 and in Windows Server 2008 R2”.

• See Scripting Programming Languages for Windows.

• “WinCC Sm@rt Server” ( formerly “Sm@rt Service”, “Sm@rt Access” ) → Access to SIEMENS PLCs with a browser. See Automation & Process Logic Control.

• The commercial AnyDesk for Windows, with smartphone client App - free for noncommercial use.
  • AnyDesk "Pricing" - Price plans “Free”,...”.
  • Google Play "AnyDesk remote PC/Mac control" for Android 5.x, 6.x. Not available for Android 4.2 anymore.
  • Use in LAN.
    • AnyDesk Support "AnyDesk client settings" - “Local port - AnyDesk uses TCP port 7070 by default for direct connections”.
    • Archive.org "AnyDesk Support 'Direct connections over IP'".
      • “There is no time limit for direct connections”.
      • “If AnyDesk is installed on both computers, you should be able to connect by entering the other computer's hostname or IP address in the address field. In this case AnyDesk will make a direct TCP connection (without our servers) to the other computer on port 7070”.
  • You may set a personal permanent password.
  • The free edition is just for Win-Pro , not for Win-Server .
• “Microsoft Remote Desktop”, free client tools for Win-Pro and Win-Server.
  • Google Play, Microsoft "Windows App".
  • Microsoft Ignite "Use the Remote Desktop client for Android and Chrome OS to connect to Remote Desktop Services and remote PCs".
• Netviewer AG.
  • The discontinued commercial NetViewer.
    • The discontinued Archive.org "Netviewer AG 'netviewer support'" for Windows - free for personal non-commercial use.
  • Downloads:
    • CCM "Netviewer Support 6.1.3" for Win98, W2k, WinXP, Vista - “Netviewer Support is a professional remote support solution ... - now freely available for personal use”.
  • Reviews:
    • ComputerBase "Fernwartung: NetViewer oder TeamViewer ".
      • “Bei Netviewer brauchen 2 Leute, die sich verbinden möchten, 2 unterschiedliche Netviewer “Versionen” (Meet/Moderator oder so) was für mich ein klares Ausschlusskriterium ist” .
      • “und musst nicht darauf achten ob Du nun die “Support”, “Meet” oder “Moderator” Version startest (wie bei Netviewer )”.
  • EN.Wikipedia "Netviewer", DE.Wikipedia "Netviewer".
    • “As of 2014, the firm offered two different products, ... GoToAssist for remote access. No free versions are available, only trial versions”.
    • “Im April 2011 wurde die Software eingestellt; das Unternehmen möchte nur noch die von Citrix stammenden Produkte GoToMeeting und GoToAssist anbieten”.
• The commercial but affordable pcvisit Software AG "pcvisit" for Windows and MacOSX.
  • 2025: pcvisit Software AG "Preise" - “Free” & “Profi”.
  • 201X: The software download is free, but if you need any service, you should subscribe for “BASICSUPPORT. Für gelegentlichen Support und Home Office-User”, with annual fee.
• The commercial but affordable TeamViewer, with smartphone client App.
  • Google Play "TeamViewer" for Android 4.2 .. 6.0.
  • Password option:
    1. The random password ist a 4-digit number, by default. It is setup by the system and changes each time, that you call the host software.
    2. Personal password.
  • TeamViewer Community "Can TeamViewer be used within a local network (LAN) only?".
  • There a 5-minutes timeout of the host software, for the free edition.
    • Google - Search for "teamviewer 5 minutes".
    • reddit "r/teamviewer" - Thread "teamviewer all of the sudden has a time limit?", 2023.
    • reddit "r/helpwire", Thread "Commercial Use Detected", 2025-09.
  • The free edition is just for Win-Pro , not for Win-Server .

• The commercial GoToMyPC.
• The commercial Matrix42 FastViewer for Windows.